Difference between revisions of "Quantities in the Decimal System"
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=== Materials === | === Materials === | ||
| − | *Loose gold beads representing units | + | *Loose gold beads (representing units) |
*Gold bead bars of ten beads each | *Gold bead bars of ten beads each | ||
*10 gold bead squares of ten bars (representing 100) | *10 gold bead squares of ten bars (representing 100) | ||
| − | *One gold bead cube of hundred | + | *One gold bead cube of hundred squares (representing 1,000) |
*Large tray with a dish or smaller tray, used for transferring the quantities<br> | *Large tray with a dish or smaller tray, used for transferring the quantities<br> | ||
| Line 17: | Line 17: | ||
=== Presentation === | === Presentation === | ||
| − | # | + | #A unit bead, and then a ten bar is placed on the table, the child is asked to identify the quantities. |
| − | #The directress gives a three period lesson naming the quantities: unit, ten, hundred, and thousand. | + | #One hundred and one thousand are presented in the same manner. |
| − | #The child is then invited to examine the materials and their composition. | + | #The directress gives a three period lesson naming the quantities: unit, ten, hundred, and thousand. |
| − | #The child may count the ten beads on the ten | + | #The child is then invited to examine the materials and their composition. |
| − | #"The hundred is made up of ten ten bars". The ten-bar is placed on top of the square as the child counts. | + | #The child may count the ten beads on the ten bar again. |
| − | #"The thousand is made up of 10 hundreds". The hundred-square is placed next to each section of the cube as the child counts. | + | #"The hundred is made up of ten ten bars". |
| + | #The ten-bar is placed on top of the square as the child counts. | ||
| + | #"The thousand is made up of 10 hundreds". | ||
| + | #The hundred-square is placed next to each section of the cube as the child counts. | ||
#The directress gives the three period lesson defining the composition of the quantities.<br> | #The directress gives the three period lesson defining the composition of the quantities.<br> | ||
| Line 35: | Line 38: | ||
=== Purpose === | === Purpose === | ||
| − | #To develop the concept of the hierarchical orders of the decimal system: units, tens, hundreds, thousands. | + | #To develop the concept of the hierarchical orders of the decimal system: units, tens, hundreds, thousands. |
| − | #To give the child the relative measurement of the quantities: bead, bar, square, cube. | + | #To give the child the relative measurement of the quantities: bead, bar, square, cube. |
#To prepare the child for geometry concepts: point, line, surface and solid. | #To prepare the child for geometry concepts: point, line, surface and solid. | ||
| Line 43: | Line 46: | ||
=== Variation === | === Variation === | ||
| − | # | + | #This can be a small group exercise. The golden bead materials, now including the wooden hundred-squares and thousand-cubes are arranged at random on a rug. |
| − | #Each child takes a tray. | + | #Each child takes a tray. |
| − | #The directress asks the child to bring a quantity. 'Bring me | + | #The directress asks the child to bring a quantity. 'Bring me 4 hundreds' As each child returns with the quantity, the child identifies it, and the directress and child count it together. |
#At first the child is asked to bring only one hierarchy at a time. Later he will bring all four at once.<br> | #At first the child is asked to bring only one hierarchy at a time. Later he will bring all four at once.<br> | ||
Latest revision as of 04:37, 15 October 2009
Contents
Age
3-6
Materials
- Loose gold beads (representing units)
- Gold bead bars of ten beads each
- 10 gold bead squares of ten bars (representing 100)
- One gold bead cube of hundred squares (representing 1,000)
- Large tray with a dish or smaller tray, used for transferring the quantities
Preparation
This is an individual presentation.
Presentation
- A unit bead, and then a ten bar is placed on the table, the child is asked to identify the quantities.
- One hundred and one thousand are presented in the same manner.
- The directress gives a three period lesson naming the quantities: unit, ten, hundred, and thousand.
- The child is then invited to examine the materials and their composition.
- The child may count the ten beads on the ten bar again.
- "The hundred is made up of ten ten bars".
- The ten-bar is placed on top of the square as the child counts.
- "The thousand is made up of 10 hundreds".
- The hundred-square is placed next to each section of the cube as the child counts.
- The directress gives the three period lesson defining the composition of the quantities.
Control Of Error
Points Of Interest
Purpose
- To develop the concept of the hierarchical orders of the decimal system: units, tens, hundreds, thousands.
- To give the child the relative measurement of the quantities: bead, bar, square, cube.
- To prepare the child for geometry concepts: point, line, surface and solid.
Variation
- This can be a small group exercise. The golden bead materials, now including the wooden hundred-squares and thousand-cubes are arranged at random on a rug.
- Each child takes a tray.
- The directress asks the child to bring a quantity. 'Bring me 4 hundreds' As each child returns with the quantity, the child identifies it, and the directress and child count it together.
- At first the child is asked to bring only one hierarchy at a time. Later he will bring all four at once.
Links
Handouts/Attachments
